RECON: TNO occultation with 14QY441

Event between 14QY441 and star GA1120:00958243 with event index number of 179080

Geocentric closest approach at 2019/01/23 09:16:09 UTC

J2000 position of star is 05:06:09.0 +22:40:34
Equinox of date position of star is 05:07:17.0 +22:42:01
Stellar brightness G=12.6, use SENSEUP=16
Star is 76 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=21.6

[RECON map]
TNO is 37.7 AU from the Sun and 37.0 AU from the Earth.
The TNO is moving 16.8 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 136 seconds.
The 1-sigma cross-track error in the shadow position is 1440 km.
The sky-plane scale is 26835.5 km/arcsec.

The TNO has an absolute magnitude Hv=5.7
Diameter=430.5 km assuming a 5% albedo -- 25.6 sec chord
Diameter=175.8 km assuming a 30% albedo -- 10.5 sec chord
Dynamical classification is 4:3E
 
 
 
 
 
 

Star training set for 14QY441, (2019/01/23 09:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.0 +16:32:46  0.8  9.42  84
Alnath         05:27:29.9 +28:37:18  1.6  7.47  71
PPM 094053     05:06:46.9 +23:05:09  6.5  0.40  76
PPM 094066     05:07:49.8 +22:32:05  7.0  0.21  76
PPM 094061     05:07:12.5 +22:41:05 10.8  0.03  76
14QY441        05:07:17.9 +22:42:02 12.6        76
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 5.0 sigma about the mid-time.
The median site spacing is 20.2 km RECON observability=1.0 and success probability=25.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:12:20 -57.1 Dark Up 33.4 266.3 Up 09:00:31 - 09:24:08 1507
Summerland 09:12:20 -57.2 Dark Up 33.6 266.0 Up 09:00:31 - 09:24:08 1494
Penticton 09:12:18 -57.5 Dark Up 33.5 266.4 Up 09:00:30 - 09:24:07 1472
Okanagan Falls 09:12:17 -57.6 Dark Up 33.5 266.5 Up 09:00:29 - 09:24:06 1456
Oliver 09:12:17 -57.8 Dark Up 33.5 266.6 Up 09:00:28 - 09:24:05 1443
Anarchist Mountain Observatory 09:12:16 -57.9 Dark Up 33.4 266.8 Up 09:00:27 - 09:24:04 1433
Oroville 09:12:15 -57.9 Dark Up 33.5 266.8 Up 09:00:27 - 09:24:04 1425
Tonasket 09:12:14 -58.2 Dark Up 33.5 267.0 Up 09:00:26 - 09:24:03 1405
Okanogan 09:12:13 -58.5 Dark Up 33.6 267.1 Up 09:00:25 - 09:24:02 1373
Brewster 09:12:13 -58.8 Dark Up 33.8 267.1 Up 09:00:24 - 09:24:01 1345
Manson/Chelan 09:12:12 -59.1 Dark Up 34.0 267.0 Up 09:00:24 - 09:24:01 1318
Entiat 09:12:12 -59.3 Dark Up 34.1 267.1 Up 09:00:23 - 09:24:00 1297
Wenatchee 09:12:11 -59.6 Dark Up 34.2 267.2 Up 09:00:22 - 09:23:59 1272
Ellensburg 09:12:10 -60.0 Dark Up 34.3 267.3 Up 09:00:21 - 09:23:58 1231
Pasco 09:12:04 -60.2 Dark Up 33.4 268.8 Up 09:00:15 - 09:23:52 1202
Yakima 09:12:08 -60.4 Dark Up 34.4 267.5 Up 09:00:19 - 09:23:56 1195
PNWRO 09:12:02 -60.3 Dark Up 33.2 269.1 Up 09:00:14 - 09:23:51 1186
Toppenish/White Swan 09:12:06 -60.5 Dark Up 34.3 267.8 Up 09:00:18 - 09:23:55 1180
George/Umatilla 09:12:02 -60.5 Dark Up 33.6 268.9 Up 09:00:14 - 09:23:51 1167
Goldendale 09:12:05 -61.1 Dark Up 34.6 267.9 Up 09:00:17 - 09:23:54 1121
The Dalles 09:12:05 -61.5 Dark Up 34.8 267.7 Up 09:00:17 - 09:23:54 1092
Niwot 09:11:16 -57.2 Dark Up 22.9 281.1 Low 08:59:28 - 09:23:05 1064
Maupin 09:12:03 -61.8 Dark Up 34.8 268.1 Up 09:00:15 - 09:23:52 1057
Madras/Culver 09:12:01 -62.3 Dark Up 34.8 268.4 Up 09:00:13 - 09:23:50 1007
Redmond 09:12:00 -62.6 Dark Up 34.9 268.7 Up 09:00:11 - 09:23:48 974
Sisters 09:12:01 -62.7 Dark Up 35.2 268.4 Up 09:00:12 - 09:23:49 966
Bend 09:11:59 -62.9 Dark Up 35.0 268.7 Up 09:00:11 - 09:23:48 951
Oregon Observatory 09:11:59 -63.1 Dark Up 35.1 268.7 Up 09:00:11 - 09:23:48 932
La Pine/Gilchrist 09:11:59 -63.3 Dark Up 35.1 268.8 Up 09:00:10 - 09:23:47 911
North Lake 09:11:55 -63.4 Dark Up 34.7 269.5 Up 09:00:07 - 09:23:44 888
Paisley 09:11:53 -63.8 Dark Up 34.5 270.2 Up 09:00:04 - 09:23:41 847
Lakeview 09:11:50 -64.1 Dark Up 34.3 270.6 Up 09:00:02 - 09:23:39 806
Chiloquin 09:11:55 -64.4 Dark Up 35.4 269.4 Up 09:00:07 - 09:23:44 801
Klamath Falls 09:11:54 -64.6 Dark Up 35.4 269.7 Up 09:00:05 - 09:23:42 771
Tulelake 09:11:52 -64.7 Dark Up 35.2 270.0 Up 09:00:03 - 09:23:40 754
Cedarville 09:11:48 -64.6 Dark Up 34.2 271.2 Up 08:59:59 - 09:23:36 750
Fall River/Burney 09:11:49 -65.5 Dark Up 35.1 270.7 Up 09:00:00 - 09:23:37 672
Susanville 09:11:44 -65.7 Dark Up 34.5 271.6 Up 08:59:56 - 09:23:33 633
Gimple 09:11:44 -66.0 Dark Up 34.7 271.7 Up 08:59:56 - 09:23:33 602
Greenville 09:11:44 -66.1 Dark Up 34.8 271.6 Up 08:59:56 - 09:23:33 600
Portola 09:11:42 -66.1 Dark Up 34.4 272.2 Up 08:59:54 - 09:23:31 582
Quincy 09:11:44 -66.2 Dark Up 34.8 271.8 Up 08:59:55 - 09:23:32 581
Reno 09:11:40 -66.1 Dark Up 33.9 272.7 Up 08:59:51 - 09:23:28 575
Carson City 09:11:38 -66.3 Dark Up 33.9 273.0 Up 08:59:50 - 09:23:27 542
Yerington 09:11:36 -66.2 Dark Up 33.4 273.5 Up 08:59:48 - 09:23:25 542
Gardnerville 09:11:37 -66.5 Dark Up 33.8 273.2 Up 08:59:49 - 09:23:26 520
Hawthorne 09:11:33 -66.3 Dark Up 32.9 274.1 Up 08:59:45 - 09:23:22 513
Tonopah 09:11:29 -65.9 Dark Up 31.8 275.2 Up 08:59:40 - 09:23:17 511
Lee Vining 09:11:33 -67.0 Dark Up 33.3 274.2 Up 08:59:44 - 09:23:21 446
Indian Springs 09:11:20 -66.0 Dark Up 30.5 276.9 Up 08:59:32 - 09:23:09 417
Beatty 09:11:24 -66.4 Dark Up 31.3 276.2 Up 08:59:35 - 09:23:12 415
Bishop 09:11:29 -67.0 Dark Up 32.7 275.0 Up 08:59:40 - 09:23:17 410
Henderson 09:11:17 -65.9 Dark Up 29.8 277.6 Low 08:59:29 - 09:23:06 388
Patrick 09:11:13 -65.6 Dark Up 28.9 278.5 Low 08:59:25 - 09:23:02 363
DCO 09:11:13 -65.3 Dark Up 28.2 279.1 Low 08:59:25 - 09:23:02 360
Lone Pine 09:11:26 -67.4 Dark Up 32.3 275.6 Up 08:59:37 - 09:23:14 348
Kingman/Dolan Springs 09:11:13 -65.8 Dark Up 29.0 278.5 Low 08:59:25 - 09:23:02 336
Searchlight/Boulder City 09:11:15 -66.2 Dark Up 29.7 278.0 Low 08:59:27 - 09:23:04 335
Laughlin/Bullhead City 09:11:13 -66.2 Dark Up 29.4 278.3 Low 08:59:25 - 09:23:02 317
Mohave Valley 09:11:13 -66.3 Dark Up 29.4 278.5 Low 08:59:25 - 09:23:02 292
Lake Havasu City 09:11:13 -66.4 Dark Up 29.1 278.8 Low 08:59:25 - 09:23:02 265
Parker 09:11:13 -66.6 Dark Up 29.0 279.0 Low 08:59:25 - 09:23:02 238
Blythe 09:11:13 -67.1 Dark Up 29.2 279.1 Low 08:59:25 - 09:23:02 188
Yuma 09:11:13 -67.6 Dark Up 29.1 279.6 Low 08:59:25 - 09:23:02 152
CPSLO 09:11:28 -69.8 Dark Up 34.3 275.1 Up 08:59:39 - 09:23:16 146
Calipatria 09:11:13 -68.0 Dark Up 29.9 279.0 Low 08:59:25 - 09:23:02 118
Idyllwild 09:11:13 -68.5 Dark Up 30.9 278.1 Up 08:59:25 - 09:23:02 113
Wildwood 09:11:19 -69.4 Dark Up 32.5 276.9 Up 08:59:30 - 09:23:07 90

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 14QY441, (2019/01/23 09:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  9.42  84
Alnath         05:26:17.5 +28:36:23  1.6  7.47  71
PPM 094053     05:05:37.7 +23:03:40  6.5  0.40  76
PPM 094066     05:06:40.9 +22:30:38  7.0  0.21  76
PPM 094061     05:06:03.6 +22:39:36 10.8  0.03  76
14QY441        05:06:09.0 +22:40:34 12.6        76
Positions are for J2000

Event circumstances last updated at 2018/10/23 20:52:15 UT

Marc W. Buie, Southwest Research Institute

RECON